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  1. Thread: File IO

    by Jack1982
    Replies
    9
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    3,225

    Instead of getting 53 74 65 67 61, I get 53...

    Instead of getting 53 74 65 67 61,

    I get 53 ffff74 fffff...other values
  2. Thread: File IO

    by Jack1982
    Replies
    9
    Views
    3,225

    Hi CornedBee, thanks for ur reply. when I...

    Hi CornedBee,

    thanks for ur reply.

    when I use ur code, some bytes were appended with FFFFF in front. How do I solve such problem?
  3. Thread: File IO

    by Jack1982
    Replies
    9
    Views
    3,225

    Hi, my file is in binary *.bin. I open it with...

    Hi,
    my file is in binary *.bin. I open it with notepad but can only see garbage values. How do I extract the array of hex values from binary file as well ?

    Do i really have to find hex editor...
  4. Thread: File IO

    by Jack1982
    Replies
    9
    Views
    3,225

    File IO

    Hi guys,

    How can I keep retrieve hex value one by one of a file with the following contents


    53 74 65 67 61 6E 6F 67 72 61 70 68 79 20 52 65 76 65 61 6C 65 64 0D 0A 4B
    72 69 73 74 79 20 57 65...
  5. Replies
    9
    Views
    1,298

    Hi guys, I need to find the RC4 Stream by...

    Hi guys,

    I need to find the RC4 Stream by XORING all plaintext with all ciphertext.
    There are 5 plain text files and 6 ciphertext files.
    Plain text file is a part of a document while ciphertext...
  6. Replies
    9
    Views
    1,298

    Thank guys, Any crypto experts here? I have...

    Thank guys,

    Any crypto experts here?
    I have generated an RC4 Stream actually. I am able to decrypt c1 file but the remaining c2 to c6 file I can't decrypt at all. I understand that since all...
  7. Replies
    9
    Views
    1,298

    I have this cryptography assignment. I am...

    I have this cryptography assignment.

    I am trying to use brute force method to identify the key used in this assignment

    http://aycu28.webshots.com/image/29987/2004709744134210497_rs.jpg
  8. Replies
    9
    Views
    1,298

    This is what I think for(keylen=1;...

    This is what I think



    for(keylen=1; keylen<=256; keylen++)
    {
    for(x=1; x<=256; x++)
    {
    for(int j=0x00; j<= 0xFF; j++)
    {
  9. Replies
    9
    Views
    1,298

    I want to generate output of all permutation of...

    I want to generate output
    of all permutation of 256

    [0][0][0] all the way to 255
    [0][0][0] all the way to 255
    [0][0][0] all the way to 255
    [0][0][0] all the way to 255
    [0][0][0] all the way...
  10. Replies
    9
    Views
    1,298

    Arrays and For Loop

    Dear all,

    If I have int array[256],
    how do I generate permutation from length 1 to 256?

    for eg: length 1,

    array[0] -> from 00 to 255

    for length 5,
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